Home / 2,879.13-3,972.51-2,083.61

Finding the Fourth Proportional to 2,879.13, 3,972.51 and 2,083.61

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Solution

The fourth proportional to 2,879.13, 3,972.51 and 2,083.61 is: 2,874.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.13 : 3,972.51 = 2,083.61 : x
  2. Step 2: Convert to fraction form
    2,879.13/3,972.51 = 2,083.61/x
  3. Step 3: Cross multiply
    2,879.13x = 3,972.51 × 2,083.61
  4. Step 4: Simplify right side
    2,879.13x = 8,277,161.56
  5. Step 5: Solve for x
    x = 8,277,161.56/2,879.13
  6. Step 6: Final answer
    x = 2,874.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.